RiverFish

Atlantic salmon · Salmo salar

Atlantic salmon in the River Derwent

Largest measured atlantic salmon: 13.7 cm

The largest atlantic salmon measured in Environment Agency surveys of the River Derwent was 13.7 cm, recorded at 1597.00 Isel Hall, Blumer Beck, River Derwent on 6 September 2021.

Across 179 measured atlantic salmon, the median measured length was 6.9 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Derwent.

See atlantic salmon records across England →

Most recent observation1 July 20251597.00 Isel Hall, Blumer Beck, River Derwent · 31 fish
Largest measured atlantic salmon
13.7 cm
Median length
6.9 cm
Fish measured
179
Survey locations
18

Individual EA measurements

Largest measured atlantic salmon

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
13.7 cm6 Sept 20211597.00 Isel Hall, Blumer Beck, River Derwent160347
13 cm5 Jul 20231520.00 Thorneythwaite, River Derwent162635
12.3 cm5 Jul 20231519.65 Seathwaite, River Derwent162632
12 cm7 Jul 20231597.00 Isel Hall, Blumer Beck, River Derwent162636
12 cm5 Jul 20231519.65 Seathwaite, River Derwent162632
11.6 cm6 Jul 20231521.00 Longthwaite, River Derwent162676
11.6 cm6 Jul 20231521.00 Longthwaite, River Derwent162676
11.4 cm6 Jul 20231521.00 Longthwaite, River Derwent162676
11.4 cm5 Jul 20231519.65 Seathwaite, River Derwent162632
11.3 cm6 Jul 20231521.00 Longthwaite, River Derwent162676

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where atlantic salmon were found

Each point marks a survey location with at least one atlantic salmon record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding atlantic salmon
1597.00 Isel Hall, Blumer Beck, River Derwent23 Jul 20041 Jul 202510
1521.00 Longthwaite, River Derwent25 Jul 20026 Jul 20236
1520.00 Thorneythwaite, River Derwent25 Jul 20025 Jul 20236
1519.65 Seathwaite, River Derwent30 Jul 20025 Jul 20236
1595.00 Coal Beck, River Derwent26 Jul 200420 Jul 20174
1565.00 Applethwaite Gill, River Derwent20 Jul 201720 Jul 20171
1596.00 Blumer Bridge, Blumer Beck22 Jul 20087 Jul 20174
1538.80 River Derwent DS Camerton Church7 Jul 20147 Jul 20141
1590.00 Dubwath Beck, Wythop Beck22 Jul 201122 Jul 20111
1545.98 National Trust Office, Brockle Beck16 Oct 200916 Oct 20091
1545.92 Springs Frm, DS barrier, Brockle Beck16 Oct 200916 Oct 20091
1539.00 US of Seaton, River Derwent30 Jul 200430 Jul 20041
1536.00 At Great Broughton, River Derwent30 Jul 200430 Jul 20041
1535.00 At Fitz Dam Stream, River Derwent30 Jul 200430 Jul 20041
1532.00 At Isel, River Derwent30 Jul 200430 Jul 20041
1528.00 US of Barkhouse Weir, River Derwent30 Jul 200430 Jul 20041
1525.00 High Stock Bridge25 Jul 200225 Jul 20021
1522.00 Grange, River Derwent25 Jul 200225 Jul 20021

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

2002–2025

Survey records by year

Each bar shows how many survey visits recorded atlantic salmon that year.

Fish measured by surveyors

Measured length distribution

See how the 179 measured fish were spread across different length ranges.

Smallest
4.8 cm
Lower quarter
6.4 cm
Median
6.9 cm
Upper quarter
8.2 cm
Largest
13.7 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Derwent

Compare other species with enough survey and measurement data for a detailed page.

European eel Brown / sea trout

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →